bsimmers
107 linhas
3.5 KiB
C++
107 linhas
3.5 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010- Facebook, Inc. (http://www.facebook.com) |
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| Copyright (c) 1997-2010 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#include "hphp/runtime/ext/ext_closure.h"
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#include "hphp/runtime/base/builtin_functions.h"
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#include "hphp/runtime/vm/jit/translator-inline.h"
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namespace HPHP {
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///////////////////////////////////////////////////////////////////////////////
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c_Closure::c_Closure(Class* cb) : ExtObjectData(cb),
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m_thisOrClass(nullptr), m_func(nullptr) {}
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c_Closure::~c_Closure() {
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// same as ar->hasThis()
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if (m_thisOrClass && !(intptr_t(m_thisOrClass) & 3LL)) {
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m_thisOrClass->decRefCount();
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}
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}
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void c_Closure::t___construct() {
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raise_error("Can't create a Closure directly");
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}
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/**
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* sp points to the last use variable on the stack.
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* returns the closure so that translator-x64 can just return "rax".
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*/
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c_Closure* c_Closure::init(int numArgs, ActRec* ar, TypedValue* sp) {
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static StringData* invokeName = StringData::GetStaticString("__invoke");
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Func* invokeFunc = getVMClass()->lookupMethod(invokeName);
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if (invokeFunc->attrs() & AttrStatic) {
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// Only set the class for static closures
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m_thisOrClass = (ObjectData*)(intptr_t(ar->m_func->cls()) | 1LL);
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} else {
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// I don't care if it is a $this or a late bound class because we will just
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// put it back in the same place on an ActRec.
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m_thisOrClass = ar->m_this;
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if (ar->hasThis()) {
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ar->getThis()->incRefCount();
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}
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}
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// Change my __invoke's m_cls to be the same as my creator's
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Class* scope = ar->m_func->cls();
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m_func = invokeFunc->cloneAndSetClass(scope);
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// copy the props to instance variables
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assert(m_cls->numDeclProperties() == numArgs);
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TypedValue* beforeCurUseVar = sp + numArgs;
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TypedValue* curProperty = propVec();
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for (int i = 0; i < numArgs; i++) {
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// teleport the references in here so we don't incref
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*curProperty++ = *--beforeCurUseVar;
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}
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return this;
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}
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c_Closure* c_Closure::clone() {
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auto closure = static_cast<c_Closure*>(ObjectData::clone());
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closure->m_VMStatics = m_VMStatics;
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closure->m_thisOrClass = m_thisOrClass;
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closure->m_func = m_func;
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return closure;
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}
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bool c_Closure::php_sleep(Variant &ret) {
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ret = false;
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return true;
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}
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HphpArray* c_Closure::getStaticLocals() {
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if (m_VMStatics.get() == NULL) {
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m_VMStatics = ArrayData::Make(1);
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}
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return m_VMStatics.get();
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}
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///////////////////////////////////////////////////////////////////////////////
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c_DummyClosure::c_DummyClosure(Class* cb) :
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ExtObjectData(cb) {
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}
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c_DummyClosure::~c_DummyClosure() {}
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void c_DummyClosure::t___construct() {
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}
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///////////////////////////////////////////////////////////////////////////////
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}
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